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<b>consider </b><font color="Maroon">c<sub>5</sub></font> being   <a href="pre_topc.html#NM2">Point</a> of <font color="Maroon">c<sub>2</sub></font>;<br/>
<b>take </b>
 <a href="midsp_3.html#K8" target="_self">Phi</a> <font color="Maroon">c<sub>5</sub></font>,<font color="Maroon">c<sub>4</sub></font>
;<br/>

<b>thus </b><a NAME="E2:45_1_1"/>
for <font color="Olive">b<sub>1</sub></font> being  <a href="pre_topc.html#NM2">Point</a> of <font color="Maroon">c<sub>2</sub></font> holds  <a href="midsp_3.html#K8" target="_self">Phi</a> <font color="Maroon">c<sub>5</sub></font>,<font color="Maroon">c<sub>4</sub></font> <a href="hidden.html#R1">=</a>  <a href="midsp_3.html#K8" target="_self">Phi</a> <font color="Olive">b<sub>1</sub></font>,<font color="Maroon">c<sub>4</sub></font>
 <b>by </b><i><a class="ref" href="midsp_3.html#T25" target="_self">Th25</a></i>;<br/>


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